The Department of Energy is requesting comments no later than Dec. 5 on whether to amend the current energy conservation standards for residential central air conditioner and heat pump products. According to the Energy Policy and Conservation Act’s six-year review requirement, DOE must publish by June 6, 2017, either proposed new standards for such products or a notice of determination that the existing standards do not need to be amended. DOE is seeking information to help it determine whether amended standards would result in a significant amount of additional energy savings and whether those standards would be technologically feasible and economically justified.